Home / 2,990,309-4,487,329.74-1,217,381

Finding the Fourth Proportional to 2,990,309, 4,487,329.74 and 1,217,381

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Solution

The fourth proportional to 2,990,309, 4,487,329.74 and 1,217,381 is: 1,826,831.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,309 : 4,487,329.74 = 1,217,381 : x
  2. Step 2: Convert to fraction form
    2,990,309/4,487,329.74 = 1,217,381/x
  3. Step 3: Cross multiply
    2,990,309x = 4,487,329.74 × 1,217,381
  4. Step 4: Simplify right side
    2,990,309x = 5,462,789,966,210.94
  5. Step 5: Solve for x
    x = 5,462,789,966,210.94/2,990,309
  6. Step 6: Final answer
    x = 1,826,831.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.